Remove the "Ghastly special case" from dataTcOccs
Remove the "Ghastly special case" from dataTcOccs

This special case was introduced in 228c4743 to
'Fix problem with :i for (:)' but the associated Note
doesn't explain why (:) deserves this treatment but not
e.g. Left and Right.

Removing the special case does not break anything
(including :i (:)) so I guess this is no longer necessary.

Conflicts:

	compiler/rename/RnEnv.lhs

wxwxwwxxx/ghc,mcschroeder/ghc,acowley/ghc,acowley/ghc,oldmanmike/ghc,da-x/ghc,frantisekfarka/ghc-dsi,anton-dessiatov/ghc,sdiehl/ghc,GaloisInc/halvm-ghc,siddhanathan/ghc,forked-upstream-packages-for-ghcjs/ghc,jstolarek/ghc,christiaanb/ghc,ghc-android/ghc,ezyang/ghc,mcmaniac/ghc,olsner/ghc,GaloisInc/halvm-ghc,ekmett/ghc,ekmett/ghc,holzensp/ghc,nathyong/microghc-ghc,vikraman/ghc,sdiehl/ghc,ekmett/ghc,nomeata/ghc,olsner/ghc,tibbe/ghc,ml9951/ghc,hferreiro/replay,sgillespie/ghc,lukexi/ghc,green-haskell/ghc,tjakway/ghcjvm,AlexanderPankiv/ghc,lukexi/ghc-7.8-arm64,tibbe/ghc,frantisekfarka/ghc-dsi,elieux/ghc,gridaphobe/ghc,urbanslug/ghc,nathyong/microghc-ghc,ezyang/ghc,olsner/ghc,lukexi/ghc,nushio3/ghc,mfine/ghc,TomMD/ghc,ryantm/ghc,siddhanathan/ghc,nathyong/microghc-ghc,christiaanb/ghc,da-x/ghc,spacekitteh/smcghc,sgillespie/ghc,elieux/ghc,elieux/ghc,vTurbine/ghc,gcampax/ghc,tibbe/ghc,ilyasergey/GHC-XAppFix,bitemyapp/ghc,sdiehl/ghc,urbanslug/ghc,shlevy/ghc,anton-dessiatov/ghc,acowley/ghc,vTurbine/ghc,AlexanderPankiv/ghc,fmthoma/ghc,AlexanderPankiv/ghc,nushio3/ghc,urbanslug/ghc,da-x/ghc,mettekou/ghc,nkaretnikov/ghc,fmthoma/ghc,wxwxwwxxx/ghc,da-x/ghc,gridaphobe/ghc,vikraman/ghc,nkaretnikov/ghc,lukexi/ghc-7.8-arm64,mcmaniac/ghc,nushio3/ghc,shlevy/ghc,green-haskell/ghc,urbanslug/ghc,ml9951/ghc,sgillespie/ghc,mfine/ghc,christiaanb/ghc,holzensp/ghc,fmthoma/ghc,sdiehl/ghc,mfine/ghc,ryantm/ghc,ekmett/ghc,fmthoma/ghc,lukexi/ghc,mettekou/ghc,AlexanderPankiv/ghc,tibbe/ghc,gcampax/ghc,vikraman/ghc,hferreiro/replay,TomMD/ghc,mcschroeder/ghc,AlexanderPankiv/ghc,mettekou/ghc,christiaanb/ghc,hferreiro/replay,holzensp/ghc,hferreiro/replay,mcschroeder/ghc,ilyasergey/GHC-XAppFix,jstolarek/ghc,gridaphobe/ghc,gcampax/ghc,elieux/ghc,da-x/ghc,vikraman/ghc,elieux/ghc,nomeata/ghc,mfine/ghc,ml9951/ghc,siddhanathan/ghc,gcampax/ghc,nomeata/ghc,mcschroeder/ghc,bitemyapp/ghc,ghc-android/ghc,bitemyapp/ghc,wxwxwwxxx/ghc,oldmanmike/ghc,forked-upstream-packages-for-ghcjs/ghc,siddhanathan/ghc,shlevy/ghc,urbanslug/ghc,siddhanathan/ghc,mettekou/ghc,vTurbine/ghc,bitemyapp/ghc,TomMD/ghc,tjakway/ghcjvm,ml9951/ghc,lukexi/ghc,acowley/ghc,oldmanmike/ghc,sgillespie/ghc,green-haskell/ghc,snoyberg/ghc,ml9951/ghc,acowley/ghc,tjakway/ghcjvm,anton-dessiatov/ghc,wxwxwwxxx/ghc,sdiehl/ghc,gridaphobe/ghc,christiaanb/ghc,green-haskell/ghc,sgillespie/ghc,sdiehl/ghc,TomMD/ghc,lukexi/ghc-7.8-arm64,vTurbine/ghc,fmthoma/ghc,AlexanderPankiv/ghc,da-x/ghc,snoyberg/ghc,bitemyapp/ghc,mettekou/ghc,oldmanmike/ghc,ml9951/ghc,snoyberg/ghc,spacekitteh/smcghc,oldmanmike/ghc,sdiehl/ghc,mcmaniac/ghc,ryantm/ghc,anton-dessiatov/ghc,vTurbine/ghc,hferreiro/replay,nkaretnikov/ghc,vTurbine/ghc,ghc-android/ghc,ghc-android/ghc,holzensp/ghc,vikraman/ghc,ryantm/ghc,hferreiro/replay,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,tibbe/ghc,anton-dessiatov/ghc,snoyberg/ghc,forked-upstream-packages-for-ghcjs/ghc,wxwxwwxxx/ghc,fmthoma/ghc,mfine/ghc,wxwxwwxxx/ghc,christiaanb/ghc,ghc-android/ghc,gcampax/ghc,olsner/ghc,urbanslug/ghc,nathyong/microghc-ghc,green-haskell/ghc,nushio3/ghc,gridaphobe/ghc,forked-upstream-packages-for-ghcjs/ghc,shlevy/ghc,vikraman/ghc,nushio3/ghc,TomMD/ghc,ryantm/ghc,siddhanathan/ghc,ekmett/ghc,ghc-android/ghc,gridaphobe/ghc,vikraman/ghc,nathyong/microghc-ghc,spacekitteh/smcghc,ezyang/ghc,ezyang/ghc,GaloisInc/halvm-ghc,nkaretnikov/ghc,forked-upstream-packages-for-ghcjs/ghc,acowley/ghc,wxwxwwxxx/ghc,gcampax/ghc,christiaanb/ghc,nomeata/ghc,frantisekfarka/ghc-dsi,mcschroeder/ghc,ilyasergey/GHC-XAppFix,olsner/ghc,mettekou/ghc,nkaretnikov/ghc,shlevy/ghc,vTurbine/ghc,mettekou/ghc,mfine/ghc,GaloisInc/halvm-ghc,tjakway/ghcjvm,frantisekfarka/ghc-dsi,tjakway/ghcjvm,forked-upstream-packages-for-ghcjs/ghc,acowley/ghc,lukexi/ghc-7.8-arm64,nkaretnikov/ghc,ilyasergey/GHC-XAppFix,tjakway/ghcjvm,mcschroeder/ghc,nomeata/ghc,siddhanathan/ghc,da-x/ghc,ml9951/ghc,jstolarek/ghc,hferreiro/replay,lukexi/ghc,jstolarek/ghc,TomMD/ghc,mfine/ghc,holzensp/ghc,nushio3/ghc,nathyong/microghc-ghc,elieux/ghc,lukexi/ghc-7.8-arm64,nushio3/ghc,nkaretnikov/ghc,AlexanderPankiv/ghc,fmthoma/ghc,nathyong/microghc-ghc,forked-upstream-packages-for-ghcjs/ghc,elieux/ghc,urbanslug/ghc,sgillespie/ghc,oldmanmike/ghc,jstolarek/ghc,GaloisInc/halvm-ghc,gridaphobe/ghc,olsner/ghc,ezyang/ghc,shlevy/ghc,anton-dessiatov/ghc,gcampax/ghc,mcschroeder/ghc,ghc-android/ghc,mcmaniac/ghc,anton-dessiatov/ghc,snoyberg/ghc,olsner/ghc,ezyang/ghc,mcmaniac/ghc,TomMD/ghc,ezyang/ghc,snoyberg/ghc,oldmanmike/ghc,sgillespie/ghc,spacekitteh/smcghc,spacekitteh/smcghc,frantisekfarka/ghc-dsi,shlevy/ghc,ml9951/ghc,snoyberg/ghc,tjakway/ghcjvm